Step 1
Select ‘Accounts‘ from the ‘Mail‘ tab under the program menu after opening Apple Mail.
Step 2
Click the ‘+‘ sign and then select ‘Exchange‘ as the mail type for both Exchange or Office 365.
Step 3
Enter an account description, your email address and your password and click the ‘Sign In‘ button.
Step 4
It may take a few minutes to verify, if it shows the spinning circle it means it hasn’t failed yet!
Step 5
Select the apps you want to use in Apple Mail with this account and then click ‘Done.‘
Step 6
Your mail account is set up and will show you the apps you selected earlier. You should be done!